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OpenStudy (anonymous):
Help please: Verify the identity.
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OpenStudy (anonymous):
\[\frac{ \cos x }{ 1+\sin x }+\frac{ 1+\sin x }{ \cos x } = 2 \sec x\]
OpenStudy (anonymous):
@saifoo.khan Can you help again, please? :o)
OpenStudy (cwrw238):
shoot - i finished it then completely lost it!!
OpenStudy (cwrw238):
write the left hand side as one fraction then convert the numerator to sines only and it will simplify to 2 / cos x which = 2 sec x
OpenStudy (amoodarya):
|dw:1357853066288:dw|
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OpenStudy (amoodarya):
|dw:1357853322180:dw|
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